List of top Physics Questions

A motor-cyclist moving towards a huge cliff with a speed of 18 km/h, blows a horn of source frequency 325 Hz. If the speed of the sound in air is 330 m/s, the number of beats heard by him is

A uniform electric field $ E = 3 \times 10^3 \, \text{N/C} $ is acting along the positive Y-axis. The electric flux through a rectangle of area $ 10 \, \text{m} \times 30 \, \text{m} $, where the plane of the rectangle is parallel to the Z-X plane is

For a particle executing simple harmonic motion (SHM), at its mean position:

Under electrostatic condition of a charged conductor, which among the following statements is true?

A body has a charge of $ -3.2 \mu C $. The number of excess electrons it has is

Two point charges of charge $ +q $ each are placed a distance $ 2d $ apart. A grounded solid conducting sphere of radius $ a $ is placed midway between them. Assume $ a^2 \ll d^2 $. Which of the following statements is/are true?

A body starts falling freely from height $ H $ and hits an inclined plane in its path at height $ h $. As a result of this perfectly elastic impact, the direction of the velocity of the body becomes horizontal. The value of $ \frac{H}{h} $ for which the body will take the maximum time to reach the ground is _____.

Draw truth table of given gate circuit.

An electron revolving in the $ n^{th} $ Bohr orbit has magnetic moment $ \mu $. If $ \mu_n $ is the value of $ \mu $, the value of $ x $ is:

In series LCR circuit, the capacitance is changed from C to 4C. To keep the resonance frequency unchanged, the new inductance should be :

Four particles each of mass 1 kg are placed at four corners of a square of side 2 m. Moment of inertia of system about an axis perpendicular to its plane and passing through one of its vertices is _____ kgm².

In a nuclear fission process, a high mass nuclide (A ≈ 236) with binding energy 7.6 MeV/Nucleon dissociated into middle mass nuclides (A ≈ 118), having binding energy of 8.6 MeV/Nucleon. The energy released in the process would be ____ MeV.

A particle executes simple harmonic motion with an amplitude of 4 cm. At the mean position, the velocity of the particle is 10 cm/s. The distance of the particle from the mean position when its speed becomes 5 cm/s is $ \sqrt{\alpha} $ cm, where $\alpha$ = ______

Two long, straight wires carry equal currents in opposite directions as shown in figure. The separation between the wires is 5.0 cm. The magnitude of the magnetic field at a point P midway between the wires is ____ μT
(Given: $\mu_0 = 4\pi \times 10^{-7} \, \text{TmA}^{-1}$)